ThiDot2

1. Post-test questionnaires (conducted after a usability test) are particularly useful for measuring?

Safety

User satisfaction

. efficiency

Learnability

2. Which of the following is the most appropriate as the description of code design and code management?

Codes inevitably vary, so it is important to put code books in order and to manage them.

Numerals should mainly be used as codes, and Chinese characters should not be used.

Codes should be assigned to make data classification easier, but the addition or expansion of codes should not be considered.

. It is desirable that codes are understandable by themselves. Therefore, the use of longer code is better.

3. Software quality characteristics include reliability, usability, maintainability and portability. Which of the following explains reliability?

It indicates whether functions required for software can always be maintained normally under designated conditions.

It indicates the degree of modification which becomes necessary when software is to be used in a different computer environment.

. It indicates how easily operations can be mastered.

It indicates the degree of ease in which modification requests from users or troubles can be handled.

4. Marks: 1 Officially, which port is used for SSH?

110

23

22

443

5. Which is the correct statement about the recent increase in macro viruses?

A macro virus infects document files opened or newly created after an infected document file is opened.

6. Which of the following operation methods is NOT appropriate for use with a computer system used with public telephone network?

C. If the password is entered wrongly for a number of times determined in advanced, the line will be disconnected.

7. Post-test questionnaires (conducted after a usability test) are particularly useful for measuring?

Safety

User satisfaction

. efficiency

Learnability

8. A method that does not require human participants serving as test users is the

Heuristic evaluation

Rubin’s comparison test

Usability test

Pluralistic walkthrough

9. If the heuristic function in an A* search algorithm is h( n) = 0, this A* search algorithm becomes which of the following algorithms?

Uniformed-cost search

Depth-first search

Iterative deepening search

Depth-limited search

10. Which of the following is an accurate statement concerning an ADSL?

It enables high-speed data transmission of differing incoming and outgoing speeds, using the existing telephone line (twisted pair).

Voice and data are sent by time-divided multiplexing.

. Voice and data are separated by a terminal adapter (TA), so they can share the same line.

11. Which of the following protocols has become a worldwide de facto standard? The protocol is used by the ARPANET in the USA, and is built into the UNIX system.

CSMA/CD

ATM

TCP/IP

ISDN

12. There is a transposition cryptosystem in which plain text is devided into four-character blocks and in each block, the first character is moved to the third, the second to the first, the third to the fourth, and the fourth to the second. In this system, which is the correct cipher text for the plain text "DEERDIDDREAMDEEP"?

DIDDDEEPDEERREAM

EDREDDDIARMEEDPE

IDDDEPDEERDEEMRA

. ERDEIDDDEMRAEPDE

13. What is the correct description of packet switching?

Compare to circuit switching, the latency within the network is short.

Packet switching service is not possible with ISDN.

. By setting multiple logical circuits, concurrent communication with multiple parties can be performed using one physical line.

14. Which is the most appropriate practice for user ID management?

When privileges are set for a user ID, they should be minimized.

A user having multiple user IDs should set the same password for all the IDs.

All the users involved in the same project should use the same user ID.

15. Valid reasons for usability testing are:

Experience changes ones perception of the world

Evaluate the performance of the interaction

. Designers believe users always follow illogical paths

Testing the performance under user stress is important

16. Which of the followig FOL sentences most matches the meaning of "Squares adjacent to wumpus are smelly"?

ThereExist S1 Smelly(S1) ThereExist S2 Adjacent(S1,S2) ^ Wumpus(S2)

ForAll S1 Smelly(S1) ForAll S2 Adjacent(S1,S2) ^ Wumpus(S2)

ForAll S1 Smelly(S1) ThereExist S2 Adjacent(S1,S2) ^ Wumpus(S2)

ThereExist S1 Smelly(S1) ForAll S2 Adjacent(S1,S2) ^ Wumpus(S2)

17. How many heuristic function are there for a given problem?

1

0

2

Infinitely many

18. Which is in an inappropriate way of handling passwords and a password file in the system management department?

Even if a password file records encrypted passwords, the department should make it inaccessible to general users.

19. Which of the following software test methods is used to check whether modifications made for software maintenance have affected other portions or not?

Linkage tests

System tests

Operation tests

Regression tes

20. What is the appropriate description of a router?

Converts protocols, including protocols of levels higher than the transport layer, and allows interconnection of networks having different network architectures.

Connects at the data-link layer and has traffic separating function.

Connects at the physical layer and is used to extend the connection distance.

Connects at the network layer and is used for interconnecting LAN systems to wide area network.

21. To use E-mail on the Internet, the two protocols SMTP and POP3 are used on mail servers. Which is the appropriate explanation of this?

SMTP is a protocol for receiving, and POP3 is a protocol for sending.

SMTP is the protocol for the Internet, and POP3 is the protocol for LAN.

22. Which of the following algorithms is NOT a local search algorithm?

Hill-climbing search

Simulated annealing search

Genetic algorithm

A* search

23. Which of the following SQL statements can extract employee_name has whose salary is 300,000 or higher from the table human_resource?

SELECT salary FROM human_resource WHERE employee_name>=300000 GROUPBY salary

SELECT employee_name, salary FROM human_resource GROUPBY salary HAVING COUNT(*)>300000

SELECT employee_name FROM human_resource WHERE salary>=300000

SELECT employee_name COUNT(*) FROM human_resource WHERE salary>=300000 GROUPBY employee_name

24. N a heuristic evaluation:

A group of test users conduct a formal experiment

A group of usability experts judge an interface with a detailed checklist of guidelines

A group of psychologists administer a questionnaire

A group of usability experts review a user interface according to a small set of principles

25. Regarding relational database manipulation, which of the following statements correctly explains projection?

. Create a table by combining inquiry results from one table and the ones of the other table

Create a new table by combining tuples satisfying conditions from tuples in more than two tables

Extract the rows satisfying specific conditions from the table

. Extract the specific columns from the table

26. Which of the following does not belong to 9 heuristics?

Speak user language

Easy to use

Provide clearly marked exits

. Minimize user memory load

27. Software quality characteristics include reliability, usability, maintainability and portability. Which of the following explains reliability?